Question

expand ((1-x) + x^2)^4 using Binomial theorem.
Note: 1-x is a single term. ​

Answer 1

Answer:

⇒(1+2x−x2)4

Let a=1+2x,b=x2

⇒(04)(1+2x)4−(14)(1+2x)3(x2)+(24)(1+2x)2(x2)2−(34)(1+2x)1(x2)3+(44)(x2)4

⇒